Antifriction-washer for hinges.



No. 724,117. PATENTED MAR. 31, 1903;

E. A. MOORE. I

ANTIPRIGTION WASHER FOR I'HNGES.

APPLICATION FILED DBO. 2, 1902.

N0 MODEL.

- cfizzbezztvz': EZzelbeztE 7720086,

- UNITED STATES PATENT OFFICE.

ETHELBERT A. MOORE, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE STANLEY WORKS, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

ANTlFRlOTlON-WASHER FOR HINGES.

SPECIFICATION forming part of Letters Patent No. 724,117, dated March 31, 1903.

Application filed December 2, 1902. Serial No. 133,552. (No model.) I

To all whom it may concern:

Be it known that I, ETHELBERT A. MOORE, acitizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Antifriction -Washers for IIinges,of which the followingis a speci-' fication.

My invention relates to antifriction-wash- [0 ers for hinges of various kinds; and it has for its object the provision of a simpleand compact device of this character ornamental in appearance and which may be readily and cheaply manufactured and by whose employment friction may be reduced to a minimum and the parts so protected that there will be no liability of the entrance of dust, dirt, or other extraneous matter between the joints thereof.

In the accompanying drawings, Figure 1 is a plan view of a butt-hinge with my improved antifriction washer between the knuckles thereof. Fig. 2 is a longitudinal vertical section of a part of a knuckle of said hinge and z 5 my improved antifriction-washer, part of the pintle being represented in elevation. Fig. 3 is a perspective view of my improvement.

Referring to the drawings, the numeral 5 indicates a hinge which may be of any conventional type, but which is shown as a butthinge composed of leaves 6 and 7, respectively, having knuckles 6' and 7', through which a pintle passes.-

Designated in a general way by the numeral 9 is my improved antifriction-washer, which inthe illustration given comprises a pair of raceway-plates 10 10, interposed balls or rollers 12, and a protecting-covering 13, of ornamental and non-oxidizable metal,in which 0 the parts just mentioned are seated and retained. As will appear by reference to Fig. 2,

' the peripheries of these raceway-plates 1O 10' are curved or beveled, as at 14, and the protecting-covering 13 is spun over orotherwise shaped upon said round or beveled portions,

and consequently conforms tothe configuration thereof. At its lower end this protective covering is made to engage the corresponding raceway-plate, and the top of said covering is provided with the usual pintle-opening 5o "ing being sufficiently'loose to enable the result to be accomplished, or, stated differently, said plate 10 may rotate within the covering with relation to the plate 10, the balls or rollers reducing the frictional contact, and thereby rendering the door or other structure to which the hinge is attached capable of easy and noiseless operation.

Heretofore in constructions known to me the raceway-plates and protecting-covering have been united by a sleeve or thimble through which the pintle passes. By praotical experience it has, however, been discoveredthat said sleeve or pintle although working well in practice may be omitted and the raceway-plates secured in the covering in the manner above described, thereby simplifying the construction and producing a device also fully effective. and reliable in operation.

My invention is shown applied to hinges; but it is to be understood that it is not limited to such use, nor, as above stated, is it re- So stricted to employment with any particular kind of hinge.

Slight changes may be made in the manner of uniting the covering to the raceway-plates, and the shape of said plates and covering may be varied without departure from the in- Vention.

Having thus described my invention, what I claim is 1. An antifriction-washer comprising race- 0 way-plates having curved or beveled peripheries; antifriction devices between said plates; and a protective covering permanently uniting the plates, and conforming to the peripheries thereof.

2. An antifriction-washer for hinges comprising perforated, disk-like raceway plates with curved or beveled peripheries; balls set in the raceways of said plates; a protective covering of non-oxidizable material having a base against which one of the raceway-plates rests, and also having a curved periphery, said covering, embracing the peripheries of both raceway-plates,and havingitsend united with one of said plates.

3. The combination, with a device capable of being turned, of an antifriction-washer against which part of said device bears, said washer comprising raceway-plates; balls located between said plates; and a protective covering having a base against which one of the plates rests, said covering being provided with a flange protecting the edges of said plates and serving to retain them in position.

4. The combination, with a hinge, of an antifriction-washer, comprising perforated raceway-plates having curved or beveled peripheries; antifriction devices between said plates; and a protective covering having a base against which one of said plates rests, 

